Bobbin-clutching means for rotatable spindles.



P. E. MOCULLGUGH.

BOBBIN GLUTGHING MEANS POR ROTATABLB SPINDLES.

APPLICATION FILED NOV. 28, 1908.

Patented. Mar. 23, 190%).

momo efri'ree relire;

PETER E. MCCULLOUGH, OF HOYEDALE, MASSACHUSETTS, ASSGNOR IO DHAPER COMPANY,

OF HOPEDLE, MASSACHUSETTS, A CGROPi/'ION '0F Melilli BOBEHLGLTCHNG IEANS FOR RGTT;

Specification of Lettere Patent.

LE SEINLES.

' To all whom il 'may concern:

Be it known that l, PETER E. MCCUL- LOUGH, e citizen of 'the 7United Sie-ies, and resident oi Hopeclale, county of lVorceeter, State of Massachusetts, have invented an Improvement in Bobbiii-'Clutehing Meeus forV Roteteble Spindles, of which the following description, in commotion with lio ee compari ing drawing, is e Speeiieetion, liiie` numeros on the drawing represent/ing like perte.

This invention lies for its object lille pio duction of novel means fori ro'ieiuiiig in position and driving n yarn-receiver or lzobfoi placed upon e iooteble' spinning, or other similar spindle, the bobble, connect ing or elutohilw means being` so constructed and arranged tiet lille centrifugal eolien due to rotetion of the spindle is mide elleetivo to hold firmly and drive tlie oolilyixi iii unison with the spindle.

Various forms of oentriiugzilly-:i"'viig bolibin-clutcliing ineens lieve been devised, lloving similar objects in view, but liereito lille construction lies been. simplified eind elli. p erred and llie novel features to oe des Hoed hereinafter serve to inereeee ille eiiieieigey of the device in several impertim pali-.iliolars.

3o v ln the resent embodimenl. of .my immo tion the c uteliirig ineens commises e. lion voted cestmieel sleeve oi suil'elole external s epe to eoter the oase of "alle bobbiii, lower end oi the sleeve liiiviog on miiioliir lateral enlargement, :mel foy loiigieufiimillj slitting ille sleeve through seid enlarge. and u werd l'o. 'ard lie upper end a. plm l. of res ieol :md'olonge'teo miie ore provided, integrally eoririeeted er 'ilier upper ends lof; econtinuous coller and erich im'viiig' al: iis lower end e segmental, lateral l'oo. "llie up er end or continuous izollor ol the sleeve is' reilly all oli :it the lower eno ol' the depending (irme enn mi like container i'ixed on lle A 'e forming o l ol liin-res Louie ro'iileil centrifugal e orme outward to firmly ip the bore oi ,Lise or imi'y thereof, this iiioreesod by-irmking heavy, 'llie eoiiloiuer '(i ii ol ed lo the spindle and ille leid arms at their upper ends or elsewhere, and also presents e smooth peripheral edge around the omer edges oi the feet, obvieting any ebene-e oi the operator injuring his hands while performing his Work.

Thevarious novel features ol my invention will be ully described iu the suliioined specification and particularly pointed oui iii the following claims.

Figure 1 is e side elevation of e portion ol i rotatable spindle with one embodiment ol my present invention applied thereto, with lili lower pertol :i bobbin shown in sei-,lion iii operative posilion thereon, Fig'. is o. vertical eee/Lion on 'lille line 2N2, Fig. 3, but willi the spiiidle in elevation 3 Fig. 3 is zi. horizontal section on the vlirie 33, Fig. 2, looking down.

l lieve sl'iovfii my invention in connection viitli ii spindle of lille sleeve-whirl typo, 'ille spindle 1 having o. Whirl 2 formed ori o reloiively large Sleeve 3, the latter at its upper end having e circular head 4 provided with ou upliurnod annuler 'flange 5, coi'istiliiting e, euplike conto infr, as clearly Shown in Fig. A control 'tubulin' exionsion 6 projeos upwerd l'riiiiii-llie container and is adopted to be forced onto the spindle preferably will). o driving iii, lo thereby vllicedly attooh the whirl und ooiilniiier to the spindle. The whirl, eoiiliuiiier nml tubular extension ore preferably mede :is :i costing.

llio clutching moans l prefer io ineke e coming, :md comprises :in elongated sleeve 7 preferably umile somevi'lizil fliiolier utils upper end, of. l?, and externally tapered et 9, lille lover ond ol' lille sleeve being laterally exi fielded lo i'oz'iii mi annuler onlni'gfoiiien, also umile lliiolier ilizm ille body or moin porlion oi" lli@ sleeve. lri'i-ri'iully lille difuiie'ler'of the 11min poriiou ol' lim elem/o, is suoli #gliel it will `lil weil) over (lio xension (i, leaving en internal slioulde lll, l- 1U. 2, willi-.li in practice :delle egeim the lop or lio extension .vlien the giurie :me riefloirililed. The thickened per# i". .loiii'xe eiiong and continuelle collar v. liii'li is prel'eriilily forced willi n. driving fit oiizo ille spindle zuid thereby is iixodly secured lflierolio.

The Tf' is longitudinally falilled from v ile lower eind upward lo 'lle mill or coller S, ee al il, und referring; io Fig. e ,i inve shown o equi-(limoni, from e i other, the

' il ille more divided yriding, to lie L, "ie

each having at its lower end a segmental foot 13, and connected integrally at their upper ends by the collar 8. Y

^ As shown in Fig. 2 the segmental feet 13 enter loosely the container, a slight clearance being left between their peripheral edges and the fiange 5, the upper faces of the feet being arms causing them to contract or move'inward as the speed decreases. Supposing the spindle to be rotating, with the arms 12 pressed outward by centrifugal action, if a obbin 14 is applied to the spindle, Fig, 1, the taper 9 readily enters the bore 15 in the base of the bobbin and as the latter is pressed down upon the arms they will be ushed inward, the feet 13 forming'a bob in-rest as shown in Fig. 1. The centrifugal action, however, causes the arms to impinge a ainst the wall of the bore 15 and tightly ho d the bobbin on the spindle to rotate in unison with it. A-bobbin can be readily applied to the s indle' and it can be as readily removed, as t e ower necessary to apply or remove the bob in is only sufficient to overcome the expanding action of centrifu al force on the arms 12. The bobbin is a ways supported at a fixed height with relation to the spindle by the engagement` of the lower end of the bobbin with the rest formed by the feet 13. By making the latter relatively thick, as shown, the expansive or clutching action of the arms 12 is increased without in any wayv detracting from their own resiliency, as will be manifest. l The smooth surface presented by the cup-like container obviates any danger to the operative, as the separated feet are protected and guarded so that the fingers or hands cannot be cut or injured. -Assemblage of the various ,parts is easily and quickly effected, and secure attachment of the clutch ing means and the container to the spindle is readily attained. The external diameter of the clutching arms is such that only a relal tively slight enlargement of the bore in the l base of the spindle is necessary, which is of advantage as thereby less of the Wood of the bobbin has to be removed, insuring the strength of the bobbin where most desirable.

Having fully described my invention, what l claim as new and desire to secure by Letters Patent is 1. Centrifugally acting bobbin clutching means for rotatable spindles, comprising an elongated metallic sleeve externally tapered and thickened at its upper end to form a continuous collar and having an annular, laterally extended enlargement at its lower end, the sleeve being longitudinally slitted from the lower end of the collar downward through the enlargement topresent a plurality of elongated and integral resilient arms each having a broad segmental foot, said arms and their feet being moved outward by centrifugal action, and a cup-like container into which the feet enter and by which' their lperipheral edges are loosely embraced, wherey outward movement of the feet is limited, the container and the continuous collar at the upper end of the sleeve being ada ted to per faces of the feet, being slightly above the top of the container and constituting a bobbin-rest.

foot, and a cup-like container on the spindle to loosely embrace the peripheral edges of the feet and limit outward movement thereof.

name to this specification, in the presence of two subscribing witnesses. Y

PETER E. MCCULLOUGH. l/Vitnesses:

G. W. KNIGHT, EDWARD DANA OsGoOD.

resilient arms each having a segmental, lateral be fixedlyfattached to a spindle, the at up- 2. In combination, a rotatable spindle, an p In testimony whereof, I have signed my Y 

